<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>输出姓名和年龄案例</title>
</head>

<body>
  <script>
    // 输入数据
    let uname = prompt('请输入你的姓名')
    let age = prompt('请输入你的年龄')
    // 输出到页面
    document.write(`大家好,我叫${uname},我今年${age}岁`)


  </script>
</body>

</html>